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Finding the Fourth Proportional to 342,435.97, 472,552.54 and 189,470.17

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Solution

The fourth proportional to 342,435.97, 472,552.54 and 189,470.17 is: 261,463.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,435.97 : 472,552.54 = 189,470.17 : x
  2. Step 2: Convert to fraction form
    342,435.97/472,552.54 = 189,470.17/x
  3. Step 3: Cross multiply
    342,435.97x = 472,552.54 × 189,470.17
  4. Step 4: Simplify right side
    342,435.97x = 89,534,610,087.73
  5. Step 5: Solve for x
    x = 89,534,610,087.73/342,435.97
  6. Step 6: Final answer
    x = 261,463.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.